GM Service Manual Online
For 1990-2009 cars only

Model

RPO Code

Tire Size

Curb

D Height - Rear Suspension

R14526

QLW

P255/65R18

82.0

QCW

P255/60R19

82.0

V14526

QLW

P255/65R18

82.0

QCW

P255/60R19

82.0

Z Height - Front Suspension

R14526

QLW

P255/65R18

57.0

QCW

P255/60R19

57.0

V14526

QLW

P255/65R18

57.0

QCW

P255/60R19

57.0